shared/foldable/device_state_configuration.xml

<device-state-config>
  <device-state>
    <identifier>0</identifier>
    <name>CLOSED</name>
    <conditions>
      <lid-switch>
        <open>false</open>
      </lid-switch>
    </conditions>
  </device-state>
  <device-state>
    <identifier>1</identifier>
    <name>HALF_OPENED</name>
    <conditions>
      <lid-switch>
        <open>true</open>
      </lid-switch>
      <sensor>
        <type>android.sensor.hinge_angle</type>
        <name>Hinge Angle Sensor</name>
        <value>
          <min>0</min>
          <max>180</max>
        </value>
      </sensor>
    </conditions>
  </device-state>
  <device-state>
    <identifier>2</identifier>
    <name>OPENED</name>
    <conditions>
      <lid-switch>
        <open>true</open>
      </lid-switch>
    </conditions>
  </device-state>
</device-state-config>